Todd Broch 7698c323ea
samus: Add host command to query USB type-C accessory attached. ...
PD accessories that are RW update-able will broadcast their rw_hash
SHA1 digest upon connection to the PD MCU which will store it.
For update purposes, the host needs that accessories device id and
rw_hash to determine its proper firmware update payload.
This CL creates a host command that requests the type-C accessory info
attached to a particular port. It also implements an ectool command
to expose the host command.
BRANCH=none
BUG=chrome-os-partner:31361
TEST=manual,
# connect zinger to port 1 on samus
ectool --dev=1 --interface=lpc infopddev 1
Port:0 Device:1 Hash: 0x7f4d7a13 0xf07b65b9 0x41181e10 0xb99b3d5f 0x9dee1206
ectool --dev=1 --interface=lpc infopddev 0
Port:0 has no valid device
Also do the same on port 0 with similar results.
Change-Id: Id63c7edad77a43d43c14d8cd6bd96e08d0d9b501
Signed-off-by: Todd Broch <tbroch@chromium.org >
Reviewed-on: https://chromium-review.googlesource.com/216814
Reviewed-by: Alec Berg <alecaberg@chromium.org >
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7698c323ea